fn:prefix-from-QName
Extracts the prefix component of a QName value. Returns an empty sequence if the QName has no prefix.
prefix-from-QName($value as xs:QName?) ➔ xs:NCName?
Arguments | ||||
| $value | xs:QName? | The QName whose prefix component is required | |
Result | xs:NCName? | |||
Namespace
http://www.w3.org/2005/xpath-functions
Links to W3C specifications
XPath 3.1 Functions and Operators
XPath 4.0 Functions and Operators
Saxon availability
Available in XPath 2.0, XSLT 2.0, XQuery 1.0, and later versions. Available in all Saxon editions. Available for all platforms.